[SMM PV Flash] Heliup Launches Lightweight Rooftop PV System Integrated with Waterproofing Membrane
French lightweight module manufacturer Heliup and Holcim-owned waterproofing brand Elevate have launched the Solar Light TPO rooftop PV system, integrating Heliup’s Stykon lightweight modules with an UltraPly TPO waterproofing membrane. The system weighs around 7kg/m² and requires no additional mounting rails, ballast or roof penetrations, targeting commercial, logistics and public buildings with limited structural load capacity. The system has received a French ETN technical assessment and Broof (t3) fire classification, while allowing PV modules to be installed up to two years after completion of the roof waterproofing work. The solution expands the range of existing buildings suitable for lightweight rooftop solar deployment.